Dealing with pre-loss grief

Hi all,

I was recently diagnosed with endo after seeking a diagnosis for 15 years (I'm 25 now and I started my period when I was 9). I fully understand that everyone's endo story and how they chose to handle it is different. I will have to get a partial hysterectomy and one of my ovaries removed. I have always grown up not wanting children for a multitude of reasons. In addition to that, I've had enough discomfort from my uterus that I've wanted a hysterectomy for awhile but always got the "what if you want children one day?" speech (which is totally valid; I'm not trying to disregard anyone's wants/opinions, it's just not what I've wanted for me). All of that being said, now that I'm about to get what I wanted... I'm depressed. I still don't actually want children, but I didn't realize how hard it would be to deal with the fact that I won't be able to do something so natural to women...

Does anyone have any tips for coping? I'm single and having to make this decision on my own. I know I'll still have one ovary if I change my mind in the future, but the idea of not being able to do things naturally as someone who doesn't wish to be a parent is shocking to me.

Again, I'm not trying to be rude or offend anyone. It's just my personal choice. But I would really appreciate the help if anyone has any tips.

Thanks in advance.